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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.sql.streaming
import org.apache.spark.sql.{AnalysisException, Row, StreamTest}
import org.apache.spark.sql.execution.streaming._
import org.apache.spark.sql.test.SharedSQLContext
import org.apache.spark.util.Utils
class MemorySinkSuite extends StreamTest with SharedSQLContext {
import testImplicits._
test("registering as a table") {
val input = MemoryStream[Int]
val query = input.toDF().write
.format("memory")
.queryName("memStream")
.startStream()
input.addData(1, 2, 3)
query.processAllAvailable()
checkDataset(
sqlContext.table("memStream").as[Int],
1, 2, 3)
input.addData(4, 5, 6)
query.processAllAvailable()
checkDataset(
sqlContext.table("memStream").as[Int],
1, 2, 3, 4, 5, 6)
query.stop()
}
test("error when no name is specified") {
val error = intercept[AnalysisException] {
val input = MemoryStream[Int]
val query = input.toDF().write
.format("memory")
.startStream()
}
assert(error.message contains "queryName must be specified")
}
test("error if attempting to resume specific checkpoint") {
val location = Utils.createTempDir(namePrefix = "steaming.checkpoint").getCanonicalPath
val input = MemoryStream[Int]
val query = input.toDF().write
.format("memory")
.queryName("memStream")
.option("checkpointLocation", location)
.startStream()
input.addData(1, 2, 3)
query.processAllAvailable()
query.stop()
intercept[AnalysisException] {
input.toDF().write
.format("memory")
.queryName("memStream")
.option("checkpointLocation", location)
.startStream()
}
}
}
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